Start seeds indoors six weeks before last frost date. Seed saved from this hybrid variety may not grow true to the parent plant.
Try to aim for a seed spacing of at least 0.78 inches (2.0 cm) and sow at a depth of around 0.39 inches (1.0 cm). Soil temperature should be kept higher than 12°C / 54°F to ensure good germination.Plant to the first set of true leaves to promote strong root growth.
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Golden san marzano is a tender plant.